3s-86 your above info is wrong.
the is a chart on club4ag in their tech ref that explains all this perfectly.
ae86 and ae82 4ages. are big port. 40/18 bottom end, no oil squirter, 9.7 cr. 96kw j' tune, 86kw aussie
aw11/early ae92 are big port 42/18, no oil squiter, 9.7 cr. power remains the same.
late ae92 is small port, no tvis, 42/20, with oil squirter, 10.3 cr 103kw j tune, 100kw aussie
101 20v have smaller 43mm throttles (but a tapered bore) and 10.3 cr
111 20v 45mm throttles (tapered bore too) 11.1 cr and also a different combustions chamber designs as well as lighter rods, maybe crank, and also the block is lighter too.
im not really all that familiar with ze's.